/**
  ******************************************************************************
  * @file           : day02_29.c
  * @author         : Cola
  * @date           : 2023/3/22 2:09
  ******************************************************************************
  */

#include <stdio.h>

int main() {
    double PI = 3.1415926;
    printf("PI = %f \n", PI);
    printf("PI = %.2f \n", PI);
    printf("PI = %2f \n", PI);
    printf("PI = %0.2f \n", PI);
    printf("PI = %6.2f \n", PI);

    printf("\n-----------\n");
    return 0;
}